PLRCAPBV1A102_KV

New perspectives with

Danfoss Saginomiya Electronic Expansion Valves

The precise step to take

REFRIGERATION ANDAIR CONDITIONING

Type KV Electronic Expansion Valves

Energy efficiency•

Precision flow control with high resolution•

Compact and lightweight•

Power saving design•

Proven know-how and high reliability•

Wide range for all common refrigerants •(R410A, R407C, R404A, R134A, R22) as well as CO2

Bi-flow for heat pump applications•

Danfoss A/S (pw/mks), 09-2008 PLRCA.PB.V1.A1.02 / 520H3055 2

Technical leaflet Electronic Expansion Valves, Type KV

General description & background

Construction & principles of operation

The KV electronic expansion valves open and close to regulate refrigerant flow by means of a screw structure which has linear motion. This occurs by the rotation of a magnet-needle valve assembly which moves when electrical signals are applied to the surrouding coil.

Within the coil structure, there are different winding configurations, and the polarities are

In response to the market shift in the early 80’s, to variable speed compressors and an increased consciousness for energy efficiency, Saginomiya introduced the KV range of stepper motor electronic expansion valves. With over 30 years of experience and know-how the current range of Danfoss Saginomiya valves offer high reliability and precise solutions for expansion and flow control in a wide range of refrigeration and air conditioning systems.

Compact and lightweight, the current range are available with different capacities, and can be used with all common refrigerants (R410A, R407C, R404A, R134A, R22) Bi-flow operation is also possible for heat pump systems.

A special high temperature range is also available, especially for applications such as hot gas by-pass.

changed by the electrical signals applied. By application of the appropriate combination of signals, in the form of pulses, the coil forces the rotor of the valve to move in a stepwise fashion. Application of multiple pulses will make the valve mechanism move through a series of steps in the direction of choice, in order for the valve to adopt the required position.

Coil

Permanent magnet motor

Needle valve

Body

Cross section diagram of KV series* Refers to refrigerant flow in cooling mode

Outlet (A*)

Inlet (B*)

In addition to this, a new range of KV valves is also available for trans-critical CO2 applications.

The valve design uses uni-polar drives, and different control solutions exist that are compatible with uni-polar drives. Please, contact Danfoss Saginomiya for more details.

3 PLRCA.PB.V1.A1.02 / 520H3055 Danfoss A/S (pw/mks), 09-2008


Model No. Code No.Orifice [mm]

Nominal Capacity [kW]Connection

(solder) MWP [bar]

MOPD [bar]

Max. Reverse Pressure

[bar]

Flow direction

charecteristic

Qty per boxR22 R134a R404A R407C R410A R744

A [mm]

B [mm]

UKV-10D85 061L4176 1,0 2,6 2,0 1,8 2,7 3,1 - 7,94 7,94 42 35 35 bi-flow [page 5] 100




VKV-20D32 061L4122 2,0 12,4 9,7 8,7 12,7 14,5 - 7,94 7,94 42 35 24 bi-flow [page 5] 100

UKV-25D57 061L4140 2,5 19,6 15,3 13,8 20,1 23,0 - 7,94 7.94 42 35 22 bi-flow [page 6] 100

UKV-30D59 061L4166 3,0 26,8 20,9 18,9 27,5 31,5 - 7,94 7.94 42 28 15 bi-flow [page 6] 100


VKV-40D61 061L4168 4,0 46,4 36,2 32,7 47,6 54,5 - 12,7 12,7 42 25 3 bi-flow [page 6] 50

AKV-55D03 061L4117 5,5 83,4 65,2 58,8 85,6 98,1 - 15,88 15,88 42 25 7 bi-flow [page 6] 20

UKV-J14D04 061L4155 1,4 - - - - - 11,2 6,35 6,35 150 100 - single (B→A) [page 7] 100

JKV-20D29 061L4169 2,0 - - - - - 20,5 7,94 7,94 150 100 - single (B→A) [page 7] 80

JKV-24D27 061L4170 2,4 - - - - - 28,9 7,94 7,94 150 100 - single (B→A) [page 7] 80

Standard modelsMaximum working pressure: 42 bar (150 bar for CO2 models)Compatible refrigerants: R22, R134A, R404A, R407C, R410A and R744 for CO2 modelsAmbient temperature: -30°C to 60°C (-30°C to 70°C for CO2 models)Fluid Temperature: UKV *: -30°C to 70°C UKV-J: -30°C to 70°C JKV: -30°C to 70°C VKV: -30°C to 120°C (-30°C to 70°C for VKV-40D61) AKV: -30°C to 130°C * models for special high temperature applications (up to

120°C) available upon requestDurability: 30 Million total pulses supplied to the valve during operation.

(for example this is comparable to 150,000 operations if the valve is operated between 100 to 300 pulses)

Ambient humidity: 95% RH or lessModulation: Permanent magnet type direct operating stepper motorExcitation method: 1-2 phaseElectrical connection: JST XHP-6Excitation speed: min. 30 pps (pulses per second) to max. 80 pps, recommended

31,3 pps (50 pps for VKV-40D61)Operating range: 0 to 480 pulses, no holding power required (NOTE: do not apply more than 520 pulses)Full motion transit time: e.g. 16 sec @ 30 pps, 6 sec @ 80 ppsInstallation position: with coil on the upper side and the valve/ coil assembly within +/- 15° of the vertical axisMax. coil temperature: 115°C

Technical data

Nominal Capacity based on: R410A: CT=38 degC, ET=5 degC, SC=0 degC, SH=0 degC, R744: CT=38 degC, CP=100 bar, ET=0 degC

Valve Specifications

Coil Specifications

Model No. Code No. Relevant valve model Voltage (current)Cable

length [m]

Protective tube length

[m]Enclosure

Insulation class

Qty per box

VKV-MOZS330E0 061L4114 Coil for VKV-20D and JKV-20D valves 12 VDC (0,26A/phase) 0.7 0.5 IP 66 Class “E” 50

VKV-MOZS243B0 061L4171 Coil for VKV-40D and JKV-24D valves 12 VDC (0,38A/phase) 0.7 0.5 IP 66 Class “E” 50

UKV-A102 061L4142 Coil for UKV valves 12 VDC (0,26A/phase) 0.7 0.6 IP 66 Class “E” 100

AKV-MOZS816B0 061L4119 Coil for AKV valves 12 VDC (0,38A/phase) 0.7 0.5 IP 66 Class “E” 20

UKV-A111 061L4178 Coil for UKV-J valves 12 VDC (0,26A/phase) 0.7 0.6 IP 66 Class “E” 100

Danfoss A/S (pw/mks), 09-2008 PLRCA.PB.V1.A1.02 / 520H3055 4


Application example

Selection method If the operating conditions of the unit are known, a KV valve can be selected easily according to the required capacity.To select the correct electronic expansion valve, it is recommended to define the maximum and minimum refrigeration capacity of the unit. It could be assumed that maximum capacity is required just after starting and the minimum just after stopping operation. In order to calculate the required maximum and minimum capacity, please refer to the tables (pages 5 or 6) for a correction factor

corresponding to actual evaporating, condensing and subcool temperatures. Then divide the unit's minimum and maximum capacity by the correction factor, to obtain the required capacities of the valve. Choose the valve for which the number of steps between maximum and minimum capacity is the widest to ensure a sufficient resolution and precision in controlling the capacity.

For more details with respect to CO2 models, please, contact Danfoss Saginomiya.

Heat pump unit


Technical leaflet Electronic Expansion Valves, Type KVCAPACITY

2008.09.03

KV_C_7a

UKV-18D51

VKV-20D32

0

5

15

10

20

[kW]

[Pulse]

Refrigerant : R410AEvaporating temp. : -25˚CCondensing temp. : 40˚CSub cool : 0˚CSuperheat : 5˚C

UKV-14D69

UKV-10D85

UKV-18D02

0 100 200 300 400 500

Evaporating temp.: -250 CCondensing temp.: 400 CSub cool: 00 CSuperheat: 50 C

Capacity for R410ACORRECTION FACTOR TABLE

2008.09.02

KV_C_11

0 10 20 30 40 50 60-60

504530

3035

504530

3035

-50

-40

-30

-25

-15

-5

0

-10

5

R410A Correction factor tableSuperheat=5˚C

Sub cool[˚C][˚C] [˚C]

Evaporating temp.

Condensingtemp.

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

5045403035

-20

0.87 1.06 1.23 1.40 1.57 1.73 1.890.91 1.08 1.24 1.40 1.56 1.71 1.860.94 1.09 1.24 1.39 1.54 1.68 1.820.95 1.10 1.24 1.37 1.51 1.64 1.770.96 1.09 1.22 1.35 1.48 1.60 1.720.91 1.09 1.27 1.44 1.60 1.77 1.930.94 1.11 1.27 1.43 1.59 1.74 1.890.97 1.12 1.27 1.42 1.56 1.70 1.840.98 1.12 1.26 1.40 1.53 1.66 1.790.98 1.11 1.24 1.37 1.49 1.62 1.740.93 1.12 1.29 1.46 1.63 1.79 1.950.97 1.14 1.30 1.45 1.61 1.76 1.910.99 1.14 1.29 1.44 1.58 1.72 1.861.00 1.14 1.28 1.41 1.54 1.67 1.801.00 1.13 1.25 1.38 1.50 1.62 1.740.96 1.14 1.31 1.48 1.64 1.80 1.960.98 1.15 1.31 1.46 1.61 1.76 1.911.00 1.15 1.30 1.44 1.58 1.72 1.851.00 1.14 1.28 1.41 1.54 1.67 1.791.00 1.12 1.25 1.37 1.49 1.61 -0.96 1.14 1.31 1.48 1.64 1.80 1.950.99 1.15 1.31 1.46 1.61 1.76 1.901.00 1.15 1.29 1.44 1.57 1.71 1.841.00 1.14 1.27 1.40 1.53 1.65 -0.99 1.12 1.24 1.36 1.48 1.59 -0.96 1.14 1.31 1.48 1.64 1.79 1.950.99 1.15 1.31 1.46 1.60 1.75 1.891.00 1.15 1.29 1.43 1.56 1.70 -1.00 1.13 1.26 1.39 1.51 1.64 -0.98 1.10 1.22 1.34 1.46 - -0.96 1.14 1.31 1.47 1.63 1.78 1.930.98 1.14 1.30 1.45 1.59 1.73 -0.99 1.14 1.28 1.41 1.55 1.68 -0.98 1.12 1.24 1.37 1.49 - -0.97 1.09 1.20 1.32 1.43 - -0.96 1.14 1.30 1.46 1.61 1.77 -0.98 1.13 1.28 1.43 1.57 1.71 -0.98 1.12 1.26 1.39 1.52 - -0.97 1.10 1.22 1.34 1.46 - -0.94 1.06 1.17 1.28 - - -0.95 1.12 1.29 1.44 1.59 1.74 -0.96 1.12 1.26 1.41 1.55 - -0.96 1.10 1.23 1.36 1.49 - -0.94 1.07 1.19 1.31 - - -0.92 1.03 1.13 1.24 - - -0.94 1.11 1.27 1.42 1.57 - -0.95 1.10 1.24 1.38 1.51 - -0.94 1.07 1.20 1.32 - - -0.91 1.03 1.15 1.26 - - -0.88 0.98 1.09 - - - -0.92 1.08 1.24 1.38 1.53 - -0.92 1.07 1.20 1.34 - - -0.91 1.03 1.16 1.28 - - -0.87 0.99 1.10 - - - -0.83 0.93 1.02 - - - -

Correction factor table

Capacity for R410A

Superheat: 50 C



Evaporating temp.: -250 CCondensing temp.: 400 CSub cool: 00 CSuperheat: 50 C

Capacity for R410ACORRECTION FACTOR TABLE

2008.09.02

KV_C_11

0 10 20 30 40 50 60-60

504530

3035

504530

3035

-50

-40

-30

-25

-15

-5

0

-10

5

R410A Correction factor tableSuperheat=5˚C

Sub cool[˚C][˚C] [˚C]

Evaporating temp.

Condensingtemp.

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

504540

3035

5045403035

-20

0.87 1.06 1.23 1.40 1.57 1.73 1.890.91 1.08 1.24 1.40 1.56 1.71 1.860.94 1.09 1.24 1.39 1.54 1.68 1.820.95 1.10 1.24 1.37 1.51 1.64 1.770.96 1.09 1.22 1.35 1.48 1.60 1.720.91 1.09 1.27 1.44 1.60 1.77 1.930.94 1.11 1.27 1.43 1.59 1.74 1.890.97 1.12 1.27 1.42 1.56 1.70 1.840.98 1.12 1.26 1.40 1.53 1.66 1.790.98 1.11 1.24 1.37 1.49 1.62 1.740.93 1.12 1.29 1.46 1.63 1.79 1.950.97 1.14 1.30 1.45 1.61 1.76 1.910.99 1.14 1.29 1.44 1.58 1.72 1.861.00 1.14 1.28 1.41 1.54 1.67 1.801.00 1.13 1.25 1.38 1.50 1.62 1.740.96 1.14 1.31 1.48 1.64 1.80 1.960.98 1.15 1.31 1.46 1.61 1.76 1.911.00 1.15 1.30 1.44 1.58 1.72 1.851.00 1.14 1.28 1.41 1.54 1.67 1.791.00 1.12 1.25 1.37 1.49 1.61 -0.96 1.14 1.31 1.48 1.64 1.80 1.950.99 1.15 1.31 1.46 1.61 1.76 1.901.00 1.15 1.29 1.44 1.57 1.71 1.841.00 1.14 1.27 1.40 1.53 1.65 -0.99 1.12 1.24 1.36 1.48 1.59 -0.96 1.14 1.31 1.48 1.64 1.79 1.950.99 1.15 1.31 1.46 1.60 1.75 1.891.00 1.15 1.29 1.43 1.56 1.70 -1.00 1.13 1.26 1.39 1.51 1.64 -0.98 1.10 1.22 1.34 1.46 - -0.96 1.14 1.31 1.47 1.63 1.78 1.930.98 1.14 1.30 1.45 1.59 1.73 -0.99 1.14 1.28 1.41 1.55 1.68 -0.98 1.12 1.24 1.37 1.49 - -0.97 1.09 1.20 1.32 1.43 - -0.96 1.14 1.30 1.46 1.61 1.77 -0.98 1.13 1.28 1.43 1.57 1.71 -0.98 1.12 1.26 1.39 1.52 - -0.97 1.10 1.22 1.34 1.46 - -0.94 1.06 1.17 1.28 - - -0.95 1.12 1.29 1.44 1.59 1.74 -0.96 1.12 1.26 1.41 1.55 - -0.96 1.10 1.23 1.36 1.49 - -0.94 1.07 1.19 1.31 - - -0.92 1.03 1.13 1.24 - - -0.94 1.11 1.27 1.42 1.57 - -0.95 1.10 1.24 1.38 1.51 - -0.94 1.07 1.20 1.32 - - -0.91 1.03 1.15 1.26 - - -0.88 0.98 1.09 - - - -0.92 1.08 1.24 1.38 1.53 - -0.92 1.07 1.20 1.34 - - -0.91 1.03 1.16 1.28 - - -0.87 0.99 1.10 - - - -0.83 0.93 1.02 - - - -

CAPACITY

2008.09.05

KV_C_12

0

20

40

60

80

120

100

0 100 200 300 400 500

AKV-55D03

[kW]

[Pulse]

Refrigerant : R410AEvaporating temp. : -25˚CCondensing temp. : 40˚CSub cool : 0˚CSuperheat : 5˚C

VKV-40D61

UKV-25D57

UKV-32D61

UKV-30D59

Correction factor table Superheat: 50 C



Capacity for R744 (CO2) Evaporating temp.: 50 CCondensing temp.: 380 CCondensing pressure: 100 bar

[kW]

CAPACITY

2008.08.07

KV_C_10

0

5

10

15

20

25

30

0 100 200 300 400 500

JKV-24D27

JKV-20D29

UKV-J14D04

[kW]

[Pulse]

Refrigerant : R744(CO2)Evaporating temp. : 5˚CCondensing temp. : 38˚CCondensing pressure : 100bar

PLRCA.PB.V1.A1.02 / 520H3055

Danfoss / Danfoss Saginomiya can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss / Danfoss Saginomiya reserves the right to alter its productswithout notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being neccesary in specifications already agreed.All trademarks in this material are property of the respective companies. Danfoss / Danfoss Saginomiya and Saginomiya and the logotypes are trademarks of Danfoss A/S and Saginomiya. All rights reserved.

Dimensions

Produced by Danfoss RA Marketing, SW. 09-2008

50

(99)

47

C

D

(47)

Conn.

Conn.

(43)

B side

A side

Model No. C D

UKV–14D69

6.35

UKV–10D85

UKV–18D51

UKV–30D59 7.94

7.94

UKV–25D57

UKV–32D61

Conn.A side

48

(65)

(136

)

12.7

12.7

(68)

Conn.B side

UKV-18D02

UKV

VKV-20D

UKV-J

JKV-24D

VKV-40D AKV-55D

2008.08.29

KV_D_4

DIMENSIONS

unit mm

Type JKV-20D Type JKV-24D

Type UKV-J

50

(100

)

47

(47)

Conn.

Conn.

(43)

B side

A side

6.35

6.35

Conn.B side

Conn.A side

(37)

48

54

(120

)

7.94

7.94

56

Conn.B side

Conn.A side

48

54

(120

)

7.94

7.94

56

2008.08.29

KV_D_3a

DIMENSIONS

unit mm

Type UKV

50

(99)

47

C

D

(47)

Conn.

Conn.

Catalog No. C D

UKV–14D69

UKV–18D02

6.35

UKV–10D85

UKV–18D51

UKV–30D59 7.94

7.94

UKV–25D57

(43)

B side

A side

(47)

Conn.

Conn.

(43)

B side

A side

UKV–32D61

30

40 50

(99)

6.356.35

Type VKV-20D

37

48

Conn.

64

49

112

Conn.

7.94

7.94B side

A side

Type AKV-55D

15.88

15.8

8

Conn.

( 67)

(65.

5)

(64.5)

(150

)

Conn.

A side

B side

Type VKV-40D

Conn.A side

48

(65)

(136

)

12.7

12.7

(68)

Conn.B side

JKV-20D

2008.09.17

KV_D_4a

DIMENSIONS

unit mm


Type UKV-J

50

(100

)

47

(47)

Conn.

Conn.(4

3)

B side

A side

6.35

6.35

Conn.B side

Conn.A side

(37)

48

54

(119

)

7.94

7.94

56

Conn.B side

Conn.A side

48

54

(119

)

7.94

7.94

56

2008.09.17

KV_D_4a

DIMENSIONS

unit mm


Type UKV-J

50

(100

)

47

(47)

Conn.

Conn.

(43)

B side

A side

6.35

6.35

Conn.B side

Conn.A side

(37)

48

54

(119

)

7.94

7.94

56

Conn.B side

Conn.A side

48

54

(119

)

7.94

7.94

56

2008.09.17

KV_D_3b

DIMENSIONS

unit mm

Type UKV

50

(99)

47

C

D

(47)

Conn.

Conn.

Catalog No. C D

UKV–14D69

UKV–18D02

6.35

UKV–10D85

UKV–18D51

UKV–30D59 7.94

7.94

UKV–25D57

(43)

B side

A side

(47)

Conn.

Conn.

(43)

B side

A side

UKV–32D61

30

44 50

(99)

6.356.35

Type VKV-20D

37

48

Conn.

64

49

(112

)

Conn.

7.94

7.94B side

A side

Type AKV-55D

15.88

15.8

8

Conn.

( 67)

(65.

5)

(64.5)

(150

)

Conn.

A side

B side

Type VKV-40D

Conn.A side

48

(65)

(136

)

12.7

12.7

(68)

Conn.B side

2008.09.17

KV_D_3b

DIMENSIONS

unit mm

Type UKV

50

(99)

47

C

D

(47)

Conn.

Conn.

Catalog No. C D

UKV–14D69

UKV–18D02

6.35

UKV–10D85

UKV–18D51

UKV–30D59 7.94

7.94

UKV–25D57

(43)

B side

A side

(47)

Conn.

Conn.

(43)

B side

A side

UKV–32D61

30

44 50

(99)

6.356.35

Type VKV-20D

37

48

Conn.

64

49

(112

)

Conn.

7.94

7.94B side

A side

Type AKV-55D

15.88

15.8

8

Conn.

( 67)

(65.

5)

(64.5)

(150

)

Conn.

A side

B side

Type VKV-40D

Conn.A side

48

(65)

(136

)

12.7

12.7

(68)

Conn.B side

Danfoss / Danfoss Saginomiya can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss / Danfoss Saginomiya reserves the right to alter its productswithout notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being neccesary in specifications already agreed.All trademarks in this material are property of the respective companies. Danfoss / Danfoss Saginomiya and Saginomiya and the logotypes are trademarks of Danfoss A/S and Saginomiya. All rights reserved.

Documents

PLRCAPBV1A102_KV